Erratic southern invaders repel rivals with acid.
Neanderthal traces appear in genes for hair and skin.
Amid cloudy skies, a nearby stellar explosion is spotted.
Scientists identify thousands of new species.
Scientists locate body regions where emotions spark a response.
Telescope observations reveal atmospheric water on exoplanets.
Exoplanet details are finally coming to light.
Bacterial infusions can heal gut microbe imbalances.
Annual ozone holes still occur, but Earth’s ozone layer is mending.
A new study of the world’s only venomous primate.